DocumentCode
2994998
Title
Implementation of G.729A on Embedded SIMD Processor
Author
Tan, Xiaoqiong ; Hu, Ruimin ; Tu, Weiping ; Ai, Haojun
Author_Institution
Sch. of Comput., Wuhan Univ., Wuhan, China
fYear
2011
fDate
9-11 Dec. 2011
Firstpage
181
Lastpage
184
Abstract
This paper addresses a real-time implementation of multi-channel, high quality G.729A speech codec based on an embedded SIMD processor, which is used in a SIP Video Phone. A series of strategies are designed for the special characteristics of the processor and the G.729A, including the memory management and SIMD decomposing. The profile shows that the dramatic improvement is achieved. Less than 20% CPU load ensures the video codec´s smooth output of the video phone.
Keywords
Internet telephony; parallel processing; speech codecs; speech coding; storage management; SIMD decomposing; SIP video phone; embedded SIMD processor; memory management; multichannel high quality G.729A speech codec; Codecs; Decoding; Delta modulation; Optimization; Random access memory; Speech; Speech coding; DSP; G.729; SIMD; Speech coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Parallel Architectures, Algorithms and Programming (PAAP), 2011 Fourth International Symposium on
Conference_Location
Tianjin
Print_ISBN
978-1-4577-1808-3
Type
conf
DOI
10.1109/PAAP.2011.29
Filename
6128499
Link To Document